Oscar Ribeiro de Almeida Niemeyer Soares Filho (15 December 1907 – 5 December 2012), known as Oscar Niemeyer, was a Brazilian architect who is considered one of the key figures in the development of modern architecture. Niemeyer was best known for his design of civic buildings for Brasília, a planned city which became Brazil's capital in 1960, as well as his collaboration with other architects on the United Nations Headquarters in New York City. His exploration of the aesthetic possibilities of reinforced concrete was highly infuential on the architecture of the late 20th and early 21st centuries.

Both lauded and criticized for being a "sculptor of monuments", Niemeyer was praised for being a great artist and one of the greatest architects of his generation by his supporters.
He claimed his architecture was strongly influenced by Le Corbusier,
but in an interview, assured that this "didn't prevent [his]
architecture from going in a different direction".Niemeyer was most famous for his use of abstract forms and curves that
characterize most of his works, and wrote in his memoirs:

"I am not
attracted to straight angles or to the straight line, hard and
inflexible, created by man. I am attracted to free-flowing, sensual
curves. The curves that I find in the mountains of my country, in the
sinuousness of its rivers, in the waves of the ocean, and on the body of
the beloved woman. Curves make up the entire Universe, the curved
Universe of Einstein."